Self-sealing paste tube



Nov. 13, 1934. H. c. ANDERSEN 1,980,607

SELF SEALING PASTE TUBE Filed June 7, 1933 4 4 I f a "MIR 11 INVENTOR ATTOR NEY Patented Nov. 13, 1934 umrao STATES PATENT OFF-lCE Y The invention relatesto a self-sealing paste tube and more especially to a self-closer for a dispensing receptacle.

Jhe primary object of the invention the provision of a device of this character, wherein the discharge opening or mouth 'of a container, for example, a paste tube, will be controlled under the influence of the contents thereof, thereby eliminating the use of a separable cap or other.

closure for the container and in the operation will permit the dispensing of the contents at the will of the user of the container.

Another object of the invention is the provision of a device of this character, wherein a container in the form of a collapsible tube will have arranged at its discharge mouth or opening a slide, the latter constituting the closure and being automatic in the working thereof to regulate the.

dispensing of the contents of the tube and to seal the latter when not in use.

A further object of the invention is the provision of a device of this character, which is extremely simple in construction, thoroughly reliable and efficient in its purpose,- automatically operable, strong, durable, and inexpensive to manufacture.

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will so be hereinafter more fully described in detail, illustrated in the accompanying drawing, which discloses the preferred embodiment of the invention, and pointed out in the claim hereunto appended.

In the accompanying drawing:

Figure l is a fragmentary vertical sectional view through a collapsible paste tube showing the device constructed in accordance with the invention applied and in closed position.

Figure 2 is a sectional view on the line. 2-2

Figure 1 looking in the direction of the arrows.

Figure 3 is a view similar to Figure 1 showing the discharge opening or mouth open.

Figure 4 is a sectional view on the line 4-4 of Figure 1 looking in the direction of the arrows. Figure 5 is a top plan view.

Figure 6 is a detail perspective view of the slide or closure device.

Figure 7 is a perspective view of the shelfor table for the slide.

Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawing in detail, A designates generally a portion of a collapsible pastetube, that is, the body thereof. and 8 the dispensing end of the same, this end being formed with a neck 10 forming a discharge opening or mouth 11 through which are delivered the contents of the tube for consumption.

Arranged interiorly of the tube A next to the end B is a shelf or table 12, one end abutting the inner face of the side wall of the body of the tube A and its other end notched at 13 and spaced from the opposite inner face of said body to provide a way 14 together with a cutaway portion 15 of this end Bto the opening or mouth 11 so that the contents of the tube will follow this way into the mouth for discharge from the tube.'

Slidably fitted within the opening or mouth 11 of the end B is a gate or closure member 16 of 79 substantially U formation with the side limb 17 next to the table or shelf 12 and e other side limb 18 movable through a slot 0 guideway 19 formed, in the end 3 50 as to have the member -16 travel across the opening or mouth 11 for 7 the closing thereof and also for the opening of the same.

Arranged within the end B and suitably seated is a coiled or convoluted tensioning spring 26 which is active under its tension upon the mem- 0 ber 16 to shift it to closing position in the opening or mouth 11. 4

Assuming under normalcy the member 16 is in its'closed position and that the tube is filled with paste. Now, when the tube is compressed the 5 contents are crowded into the way 15 to exert a pressure against the member 16 against the resistance-of the spring 20 and this crowding of the substance or paste causesthe member 16 to shift to'open position so that'the'paste or substance will be delivered through the mouth or opening 11 to the outside of the tube for consumption. When pressure is relieved on the contents of the tube A-the spring 26 becomes active upon the member 16 forcing it to closed sealing position in the opening or mouth 11 of the end B of said tube and in this manner the dispensing of the contents of the tube is relieved.

. When the member 16 is in closed position this is the normal condition of the tube. 160

It should be apparent that by frictional confact of a person upon the side portion 18 of the member 16 for a pull of this member from closing to open position the opening or mouth 11 can be opened for the dispensing of the contents of the tube and in this fashion the said member 16 can be manually operated. 7

What is claimed is: I In a collapsible tube having a discharge head provided with an outwardly tapered delivery mouth, a shelf interiorly oi? the tube and arranged at the inner side of the head, the said head, at its inner side, being cut away to form a seat for the said shelf, a closure member. of substantially U-shape fitted within the mouth and having one side limb superimposed upon the shelf and the other side limb closing the outer end of the said mouth, the outer end of the mouth being formed with a slot for accommodating said 

